Read the dictionary definition of notional. All definitions for this word.
1. being of the nature of a notion or concept
1. a plan abstract and conceptional
2. to improve notional comprehension
3. a notional response to the question
2. indulging in or influenced by fancy
1. a fanciful mind
2. all the notional vagaries of childhood
3. not based on fact or investigation
1. a notional figure of cost helps in determining production costs
2. speculative knowledge
4. not based on fact; existing only in the imagination
1. the falsehood about some fanciful secret treaties
2. a small child's imaginary friends
3. to create a notional world for oneself